Patient equipment transport and support system

ABSTRACT

A selectively transportable equipment support system is provided for operative association with an invalid transport vehicle such as a hospital bed. The system includes a transport bracket for selective secured association with a hospital bed or a service column. Various patient care items are secured to the transport bracket. Such items preferably comprise infusion pumps with associated fluid bags that are typically transported with the patients and employed in surgical rooms or intensive care units. The transport bracket includes a pivot post for reception in a service column latching assembly which allows pivotable movement of the transport bracket when it is secured to a service column support arm. The service columns are pneumatically powered for powered lifting and positioning of the transport bracket.

This is a divisional of co-pending application Ser. No. 886,207 filed onJuly 15, 1986, now U.S. Pat. No. 4,795,122.

BACKGROUND OF THE INVENTION

This invention pertains to the art of transport and support systems and,more particularly, to a selectively mountable transport bracket for usewith an invalid or hospital patient transport vehicle.

The invention is particularly applicable to a selectively transportableequipment support system for operative association with a hospital bedand, more particularly, to a transport system for equipment primarily tobe used for patient care to and from an operating room to an intensivecare unit. However, it will be appreciated by those skilled in the artthat the invention could be readily adapted for use in otherenvironments as, for example, where similar transport and supportdevices are employed for the convenient transport of other types ofequipment.

For very ill hospital patients, such as for example cardiac surgerypatients, there is a great deal of equipment associated with theirtreatment. Much of this equipment will comprise infusion pumps andintravenous solutions. A common problem in all hospitals is how totransport the equipment which is in operative use with the patient,along with the patient over long distances through the hospital, acrosselevator thresholds or around hallway corners. Frequently, severalnurses are required to handle the transport of the patient and theequipment. Some nurses will be moving the bed containing the patient,other nurses would be pushing IV stands and other equipment supportdevices. The number of people involved, the instability of some of theequipment support systems during rolling movement and normal pathobstacles such as elevator thresholds have all combined to make ittroublesome and difficult for the movement of the patient and equipmentwhen moving the patient to and from an operating room or from and to anintensive care unit or a patient holding area.

In addition, the complexity and size of some of the equipment now usedfor patient care demands more stable and reliable support devices toinsure the safety of the equipment. As the equipment increases in size,weight, and variety, a support system has long been needed which willconveniently allow for the secure support of the equipment, its easymaneuverability for the convenience of the patient and its easytransport during times when the equipment is operatively associated withthe patient and the patient needs to be moved from place to place in thehospital.

The various forms and types of equipment support and transport systemsfor infusion pump equipment and the like have heretofore suffered fromall these problems. The present invention comprises a new and improvedmethod and system which overcomes all of the above referred to problemsand others to provide a new invalid equipment transport and supportsystem which is simple in design, economical to manufacture, readilyadaptable to a plurality of uses with patient transport vehicles havinga variety of dimensional characteristics, easy to attach, easy toremove, and easy to transport to provide improved equipment support andimproved convenience and safety to a hospital patient.

BRIEF SUMMARY OF THE INVENTION

In accordance with the present invention, there is provided incombination a patient transport vehicle for a hospital patient, atransport bracket for selective support of patient care equipment on thetransport vehicle, a service column for alternative secured support ofthe transport bracket; and means for selectively mounting the transportbracket to the transport vehicle and the service column. Patient careequipment is conveniently supported near the patient on the transportbracket and is transported with the patient and his transport vehicle bythe transport bracket during patient movement.

The invention comprises a selectively transportable equipment supportsystem for operative association with any type of patient transportvehicle and which is particularly intended for use with a hospital bed.The transport bracket includes means for support of patient care itemssuch as infusion pumps or intravenous solution bags, and furtherincludes means for selective secured association with the hospital bedand the service column. The service column comprises a recovery roomservice column and a surgical room service column. Preferably, thetransport bracket includes an upstanding pivot post sized for pivotablereception in a service column support arm. A latching block assembly isdisposed in the pivotable support arm for latching reception of thepivot post.

In accordance with another aspect of the present invention, the servicecolumn includes means for axially telescoping the column for selectivepositioning of the pivotable support arm and transport bracket whenmounted thereon. The axially telescoping service column, in combinationwith the pivotable support arm and further in combination with thepivotable mounting of the transport bracket to the support arm, allowsfor a variety of movement of the transport bracket for selectivepositioning of equipment relative to the patient and for convenientmounting of the transport bracket to the patient transport vehicle.

In accordance with the present invention, a method is provided for thesupport and transport of hospital patient care items. The methodcomprises a first step of providing a transport bracket sized forsupport of a plurality of hospital patient care items. The bracketincludes means for selective attachment to a hospital bed and a hospitalservice column. The second step of the method comprises attaching thetransport bracket to a hospital bed whereby the patient care items canbe transported with the bed and the patient. The third step comprisesattaching the transport bracket to the service column at a place ofpatient care and unattaching the transport bracket from the bed wherebythe patient care items can be supported near the patient by the servicecolumn when the bed is removed.

One benefit obtained by the use of the present invention is an invalidcare and equipment transport system which provides improved stabilityand safety for equipment needed to be transported with a patient.

Another benefit obtained from the present invention is the provision ofa equipment transport bracket which can be selectively mounted to apatient transport vehicle and a hospital service column. When mounted tothe transport vehicle, the transport bracket supports the equipment byattachment to the transport vehicle and avoids the necessity forseparate, independently moved equipment support devices.

A further benefit of the present invention is a transport and supportsystem which provides for convenient powered detachment of the transportbracket from the transport vehicle by a service column and mounting ofthe transport vehicle on the service column at a position allowingconvenient operative association of the equipment with the patient at aposition spaced from the transport vehicle.

Another benefit of the present invention is that it meets the overalltransport requirements for cardiac patients moving from surgery to anintensive care unit or from an intensive care unit to surgery. Itsimplifies the use of infusion pumps in both areas and provides for somestandardization in the infusion management philosophies of both areas.

Other benefits and advantages for the subject new invalid equipmenttransport system will become apparent to those skilled in the art upon areading and understanding of this specification.

BRIEF DESCRIPTION OF THE DRAWINGS

The invention may take physical form in certain parts and arrangementsof parts, and certain steps and arrangements of steps, the preferredembodiments of which will be described in detail in this specificationand illustrated in the accompanying drawings which form a part hereofand wherein:

FIG. 1 is a front plan view of an unloaded transport bracket mounted toa recovery room service column formed in accordance with the presentinvention;

FIG. 2 is an enlarged front plan view of the transport bracket of thepresent invention shown partially in section by phantom lines;

FIG. 3 is a side plan view of the transport bracket of FIG. 2;

FIG. 4 is a side plan view of a recovery room service column shownpartially in cross-section;

FIG. 4a is a back plan view of a portion of the service column of FIG. 4taken along lines 4a--4a of FIG. 4;

FIG. 5 is a cross-sectional view of the service column of FIG. 4 takenalong lines 5--5;

FIG. 6 is a plan view of a portion of the support arm of the servicecolumn of FIG. 4 particularly illustrating the latching assembly whereinchambers of the latching assembly are shown in phantom;

FIG. 7 is a cross-sectional view of the latching assembly taken alonglines 7--7 of FIG. 6 wherein an upstanding pivot post of the transportbracket is shown in phantom and received in the latching assembly;

FIG. 8 is a front plan view of a transport bracket, loaded with infusionpumps and IV bags wherein the bracket is mounted on a support arm of aservice column and wherein bed bracket mounting posts receptacles areshown in phantom;

FIG. 9 is a front plan view of a bed bracket formed in accordance withthe present invention wherein the bracket is illustrated as attached toa transport vehicle in phantom;

FIG. 10 is a side plan view of the bed bracket of FIG. 9;

FIG. 11 is a bottom plan view of the bracket of FIG. 9;

FIG. 12 is a side plan view of the bracket of FIG. 9 particularlyillustrating the bracket mounted on a bed and positioned for receptivemounting of a transport bracket wherein the transport bracket is shownin phantom;

FIG. 13 is a cross-sectional view of a surgical room service columnwherein the service column is shown mounted to a ceiling;

FIG. 14 is a cross-sectional view taken along lines 14--14 of FIG. 13;and,

FIG. 15 is a back plan view of a portion of the service column of FIG.13.

DETAILED DESCRIPTION OF THE INVENTION

Referring now to the drawings wherein the showings are for purposes ofillustrating the preferred embodiments of the invention only and not forpurposes of limiting same, the FIGURES show a selectively transportablesupport system for patient care equipment such as infusion pumps, IVbags, and the like which are typically transported with very illpatients during hospital movement. Such movement typically occurs from asurgical room to a recovery room.

The system is comprised of a transport bracket 10, a recovery roomservice column 12 (FIG. 1) and a surgical room service column 14 (FIG.13). The transport bracket 10 can be loaded with patient care equipmentsuch as infusion pumps (FIG. 8) which needs to be transported with apatient on a patient transport vehicle 16 such as a hospital bed (FIG.12).

More specifically, and with reference to FIGS. 1, 2, and 3, thetransport bracket 10 includes means for support of patient care itemsand means for selective secured association with the hospital bed. Thesupport means comprises upper rail 22, lower shelf 24, side supports 26,28, and a central support 30. The lower shelf 24 is sized to present aplatform support for different infusion pumps 32 (FIG. 8). The supports26, 28, 30, also support the pumps 32 where the pumps are clamped to thesupports (not shown). Fluid bags 36 are hung on the upper rail 22 withfasteners or hooks 28, and the fluid from the bags 36 is communicated tothe pumps 32 by tubing 40. Ultimately, the fluid in the bags 36 ispumped into the patient through the infusion pumps 32. The upper railalso includes a clamp 42 for the support of an IV pole 44 upon whichadditional IV fluid bags may be hung.

The structure of the transport bracket 10 has been discussed withreference to the particular construction preferable for the support ofinfusion pumps and intravenous fluid bags. It is within the scope of theinvention to include alternate constructions for the preferred supportof other types of patient care items.

The means for selective secured association to the hospital bedcomprises spaced transport bracket legs 50, 52 secured to the bracketlower shelf 24. Each of the legs 50, 52 include a receiving bore 54, 56sized for cooperative mating engagement to bed support rods 58, 60 (FIG.12) as will hereinafter be more fully discussed in conjunction with themethod of the present invention.

The means for selective secured association of the transport bracket 10with the service columns 12, 14 comprises an upstanding pivot post 64sized for a locking pivotable reception in latching assembly 66 of theservice columns. More particularly, the pivot post 64 is secured to thetransport bracket 10 by a post mounting plate 68 to which the post ispreferably attached by a weld. Threaded fasteners 70 are employed tofasten the post and mounting plate assembly to the upper rail 22 andside support 26.

The post 64 includes a circumferential groove 72 comprised of a postreduced diameter portion that is sized for close reception in a latchingassembly receiving bore 86 (FIG. 7). The post includes a square edge 74at the uppermost portion of the groove 72 to facilitate locking of thelatching assembly by the weight of a loaded transport bracket 10.

In operation, the transport bracket 10 will either be mounted on thehospital bed or the service column. With reference to FIG. 12, whenmounted on the bed, the bed support rods 58, 60 are received in thetransport leg bracket bores 54, 56. When thus mounted, the transportbracket is stationary with respect to the bed and can be moved with thebed and the patient as the patient is moved from the surgical room to arecovery room or elsewhere.

It is within the scope of the invention that the transport bracket canbe mounted on any type of patient transport vehicle. With reference toFIGS. 9-11 the vehicle bed bracket 62 is comprised of two upstanding bedsupport rods spaced for mating reception within transport bracket legsreceiving bores 54, 56 (FIG. 12). The bracket 62 further includes atransport bracket support plate 78 through which bed support rods 58, 60extend and which is disposed for overlapping engagement against bedsupport member 80. A support rod block 82 further supports the rods 58,60 and is further fastened to the bed member with threaded fasteners 85.Detailed discussion of the bed brackets 62 has been with reference to apreferred embodiment for use with a hospital bed. It is within the scopeof the invention to include alternate constructions particularly adaptedfor other types of patient transport vehicles than a hospital bed.

With reference to FIGS. 1, 6, and 7, the latching assembly 66 forlocking the transport bracket 10 to a service column will bespecifically discussed. The latching assembly 66 is intended to receivethe transport bracket post 64 so that the transport bracket is securedto the service column. The post 64 is received in a tube 84 having anopen ended passageway 86 sized for close reception of the post 64. Thepassageway 86 includes chamfered end portions 88, 90 for ease andconvenience in inserting and removing the post 64 from the passageway86. The tube 84 is secured to a receiving column arm 94 by welding 96 atthe terminal ends of the arm 94 where the arm engages the tube. Withparticular reference to FIG. 6, it may be seen that the tube 84 isreceived in a generally arcuate cut-out of the terminal end portion ofthe arm 94 which mates with a segment of the circumference of the tube.A weld attachment along the arm terminal end 94 is effective in securingthe tube to the arm and in supporting the weight of the transportbracket and any equipment contained thereon.

A latching block 98 is also secured to the arm 94 by a weld and supportsa latch plate 100 and a locking pin assembly 102. The latch plate 100has a pivot post slot 104 in a terminal end portion of the plate whichis sized for close reception of the pivot post circumference groove 72upon full reception of the post in the tube passageway 86 whereby thepost 64 is secured in the latching block assembly for pivotable supportof the transport bracket. When the post 64 is thus locked in the latchassembly 66, the square edge 74 presses upon the latching plate so thatthe latching assembly can only be released after all weight has beenremoved from the arm 94. More particularly, the latch plate 100 isslidingly secured to the block 98 by guides 106 and guide slot 108. Slot108 is sized to allow sliding movement of the plate 100 away from thepivot post 64 so that the post can be removed from the passageway 86. Alatch plate handle 110 facilitates operator sliding of the plate 100.

The locking pin assembly 102 comprises a spring biased pin 116 urgedinto a locking pin bore 118 and the plate 100. In operation, to separatethe transport bracket 10 from the service column arm 94, pin handle 120is operated to compress the pin spring 122 so that the plate can be slidaway from the pivot post 64. Conversely, when the pivot post is desiredto be locked in the latch assembly 66, the plate 100 is urged toward thepost until the pin is overlapped by the pin bore 118 and may be lockedin a pin locking position by reception in the pin bore 118.

The service columns which support the transport bracket 10 away from thehospital bed preferably comprise a recovery room service column 12(FIG. 1) and an operating or surgical room service column 14 (FIG. 13).

With reference to FIGS. 1, 4, and 5, the recovery room service column 12includes a selectively operable gas powered piston and cylinder assembly124 for selective positioning of a shaft 126 secured to the support arm94. The piston and shaft are supported by an adapted T-beam 128 fastenedto the recovery room ceiling. A valve 130 operated by handle 132 allowsan operator to selectively control the positioning of the arm 94vertically through the control of gas pressure to the piston 124. Ahousing 134 encases the cylinder and shaft assembly and is also fastenedto the T-beam 128. Bearing block 122 guides and supports the shaft 126.The lower portion of the service column 12 preferably includes a numberof electrical outlets 136 to supply power to the equipment that may bemounted on the transport bracket.

In operation, the transport bracket 10 is loaded onto the support arm 94by selective positioning of the shaft 126 to allow reception of thetransport bracket pivot post 64 within the latching assembly 66. Afterlocking of the post within the latching assembly, the piston cylinder124 is powered to lift the latch transport bracket off of the hospitalbed support bracket 62 (FIG. 12) for positioning at a locationconvenient to the patient. In loading the transport bracket off of theservice column 12 and back on to the bed bracket 62, the transportbracket legs 50, 52 are similarly aligned with the bracket support rods58, 60 and the cylinder is operated to lower the transport bracket 10onto the bed bracket 62. After the weight of the transport bracket 10 isrelieved from the support arm 94, the latching assembly 66 may beunlocked and the arm 94 is lifted away from the pivot post 64. In thismanner, the transport bracket 10 can be selectively attached to ahospital bed whereby the patient care items can be transported with thebed and the patient; selectively attached to a service column 12 at aplace of patient care whereby the patient care items can be supportedoff the bed and near the patient.

With reference to FIGS. 13, 14, and 15, a surgical unit service column14 formed in accordance with the present invention is illustrated. Thesurgical room service column 14 is generally of a larger constructionthan the recover room service column 12 to accommodate additionalelectrical and various gas and air services. It is also selectivelypositionable in the vertical direction by selective operation of apneumatically operated piston and cylinder assembly 142 and associatedshaft 144 secured to support arm 146. Support arm 146 is identical inconstruction to the support arm 94 of the recovery room service column12. Shaft 144 is coupled to the piston cylinder 142 with a coupler 150and supported in bearing block 152. The assembly is secured to asurgical room ceiling by bracket supports 154, 156, the fixed mountingplate 158 and a leveling mounting plate 160. A T-beam assembly 162fastened to the plates 158, 160 comprises the main support for thepiston cylinder 142 and shaft 144. A telescoping housing comprising ahousing outer member 164 and a housing inner member 166 encases thepiston and shaft. Guide rollers 168 direct and space the movement of theinner housing 166 from the outer housing 164 to avoid rubbing orinterference during telescopic movement.

The surgical room service column includes electrical outlets 170 and gasand air connects 172 for service or supply to the patient or supportequipment. A piston control valve 174 operated by handle 176 directs theoperation of the piston cylinder 142 in a manner similar to theoperation of the recovery room service column. Since the valve gasconnects and electrical outlets require a number of service linescontained within the column 14, a cover shield 180 protects the linesfrom being crimped or caught by the shaft 144 during operation.

OPERATION

The subject development has been intended to work as an integral part ofthe transport mechanisms and infusion management of hospital patientsand, in particular, cardiac surgery and cardiovascular intensive careunit patients. The selectively transportable equipment support system isconstructed to lift up to 175 lbs. of equipment and is powered by aconventional hospital air supply line. Electrical power sources are alsoprovided in the service column supports for convenient power suppliesfor the infusion pumps which are typically transported with cardiacpatients and employed in the cardiovascular intensive care units. Thesubject support and transport system includes a linear bearing assemblyin the service columns to provide virtually frictionless rotational andvertical movement of the support arm. The control valves are springloaded to a center or "off" position to minimize operational failures.The lift pistons also drive the support arms down for lowering thetransport brackets onto the patient beds. For safety reasons, the drivepower in the lowering mode is preferably limited to 25 lbs. plus thevariable weight of the transport bracket and equipment (typical expectedweight 100 lbs).

The latching assembly of the support arm provides a positive couplingbetween the transport bracket and the service columns. The latchingmechanism can only be released after all weight has been removed fromthe support arm. Virtually, any type of bracket construction can beemployed with the service column as long as an appropriate pivot postcoupling is employed and so long as the bracket does not exceed weightlimitations.

During normal operation of the system, a patient returning from surgerywill arrive in the cardiovascular intensive care unit with a transportbracket 10 mounted on the side of the bed 16. The bracket will includeall infusion pumps 32 and intravenous solutions 36 used during thesurgical case. After the patient has been stabilized, the nurse willlower the service column arm 94 and couple the transport bracket 10 tothe arm. This is accomplished by simply lowering the arm 94 onto thepivot post pin 64 of the transport bracket 10, locking the assembly andraising the bracket 10 off the bed 16. The transport bracket will thenbe rotated away from the bed for use as an intravenous solutiondistribution bracket. If the patient needs to be returned to surgery,the bracket 10 can be moved back onto the bed 16 and transported withthe patient to surgery.

A principal advantage of employing the subject system is that it meetsthe overall transport requirements for cardiac patients moving fromsurgery to the intensive care units or from the intensive care units tosurgery. It simplifies the use of infusion pumps in both areas. Thesystem will replace at least two floor intravenous stands at eachlocation. It also provides for standardization in the infusionmanagement philosophies of both surgical areas and intensive care unitareas.

The invention has been described with reference to the preferredembodiments. Obviously, modifications and alterations will occur toothers upon the reading and understanding of the specification. It is myintention to include all such modifications and alterations insofar asthey come within the scope of the apended claims or the equivalentsthereof.

Having thus described my invention, I now claim:
 1. A hospital servicecolumn for association with an equipment transport bracket including abracket post including:a pivotable support arm having a latching blockassembly disposed for locking reception of the transport bracket, theblock assembly including a post receiving tube adapted to receive thebracket post for pivotable reception of the bracket and having a latchplate and locking pin assembly; a piston and cylinder assembly inassociation with said support arm for selective powered positioning ofthe support arm, said support arm being mounted to a shaft coupled tosaid piston and cylinder assembly; selectively operable valve means foroperation of said piston and cylinder assembly; and, a housing sized tocontain said piston and cylinder assembly and including service outletmeans for the communication of power and gas sources.